Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D699867 | Roof shingle | Michael J. Thompson, Allen E. Preuss, Fredrick R. Schneider | 2014-02-18 |
| D668795 | Roof shingle | Michael J. Thompson, Allen E. Preuss, Fredrick R. Schneider | 2012-10-09 |